Home / 58,500.97-87,678.65-28,490.67

Finding the Fourth Proportional to 58,500.97, 87,678.65 and 28,490.67

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Solution

The fourth proportional to 58,500.97, 87,678.65 and 28,490.67 is: 42,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,500.97 : 87,678.65 = 28,490.67 : x
  2. Step 2: Convert to fraction form
    58,500.97/87,678.65 = 28,490.67/x
  3. Step 3: Cross multiply
    58,500.97x = 87,678.65 × 28,490.67
  4. Step 4: Simplify right side
    58,500.97x = 2,498,023,483.20
  5. Step 5: Solve for x
    x = 2,498,023,483.20/58,500.97
  6. Step 6: Final answer
    x = 42,700.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.